IU & Byun Woo Seok Reunite for Kiss Scene

In the 10th episode of MBC's Friday-Saturday drama '21st Century Grand Prince's Wife', Sung Hee-joo (played by IU) and Grand Prince Ian (played by Byun Woo-seok) confirmed their feelings for each other and reunited amidst crisis. Previously, the two found themselves at the center of controversy when their contract marriage became known, and Grand Prince Ian's position became precarious due to his collusion with Castle Group, rumors of usurping the throne, and suspicions of staging a poisoning attempt at their wedding.

In response, Sung Hee-joo told Grand Prince Ian, "Let's get a divorce. I don't want to lose any more," saying words she didn't mean, which caused Grand Prince Ian to sob. Sung Hee-joo, heading to the royal court to inform the royal family of their divorce, said, "​Depose me. I'm the one who craved a higher status, the suspect in the Zhonghua Hall fire, and the one who collapsed after taking medicine," trying to protect Grand Prince Ian by sacrificing herself.

Seeing Sung Hee-joo's actions, Grand Prince Ian turned away, saying, "You said you didn't want to lose anything more. That's why you wanted a divorce. But what do I do if you're willing to lose everything? You didn't trust me." However, Sung Hee-joo, unable to let go of her feelings for Grand Prince Ian, eventually went to find him and confessed, "​I want to be with you. I like you," and kissed him. Grand Prince Ian also revealed his feelings, and the two shared a passionate reunion kiss.

However, another crisis befell the couple. A fire broke out in the royal court, and Grand Prince Ian was inside. The episode heightened curiosity by showing Sung Hee-joo in shock, shedding tears.